Page 35 - MATEMATIKA KELAS 3 SD

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1. 15 x (6 + 3) = (15 x 6) + (15 x 3)
15 x 9 = 90 + 45
135 = 135
Hasil sebelah kanan dan kiri sama yaitu 135. Jadi,
perkalian mempunyai sifat penyebaran atau distributif.
2. 18 x 7 = (18 x 5) + (18 x 2)
126 = 90 + 36
126 = 126

a x (b + c) = (a x b) + (a + c)

Latihan 27

Selesaikanlah soal-soal berikut!
1. 13 x (8 + 7) = 13 x 8) + (13 x ...)
2. 8 x (10 + 7) = (8 x...) + (...x 7)
3. 16 x (7 + 3) = (...x 7) + (...x 3)
4. 18 x (5 + 6) = (18 x...) + (18 x...)
5. 12 x (...+...) = (12 x 2) + (12 x 8)
6. 13 x (7 + 2) = (13 x 7) + (13 x 2)
13 x ... = ... + ...
... = ...
7. 5 x (20 + 6) = (...x 20) + (...x 6)
5 x ... = ... + ...
... = ...
8. ... x (15 + 5) = (30 x 15) + (...x 5)
... x 20 = ... + ...
... = ...
9. 30 x (15 + 2) = (...x 15) + (30 x...)
30 x ... = ... + ...
... = ...
10. 7 x (32 + 8) = (...x 32) + (...x 8)
7 x ... = ... + ...
= ...

24
Matematika kelas 3 SD/MI